An extra Friday night service to Pukekohe will leave Papakura at 11.01pm (the connecting service departs Britomart at 9.58pm).
All Pukekohe trains will depart from and arrive at platform 4 at Papakura.
On the Onehunga line all weekday services will depart a few minutes earlier with some minor changes to weekend times.
The Southern line will see some changes to departure times.
There will be no changes on the Eastern line.
The new timetables will come into effect on May 8.
In addition some minor changes have been made to bus route 139 between Waitakere and Swanson due to new Western Line timetable.